Stenographic type-writing machine.



W. H. EBELHARE & G. ARVIDSON.

STENOGRAPHIC TYPE W RIT|NG lMACHINE.v APPLICATION FILED Nov. 22. Isle.

- Patented Jan. 8, 1918.

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I Q Wwf I w f I/NTORS w m Y v? E 6 I. f7 fg Wrafllornqs UNITED STATESPATENT OFFICE.

WILLIAM H. EBELHARE AND CLARENCE G. ARVIIDSON, OF INDIANAPOLIS, INDIANA,ASSIGNOBS TO THE STENOTYPE COMPANY, OF INDIANAPOLIS, INDIANA.

STENOGRAPHIC TY PE-WRITIN G MACHINE.

Specification of Letters Patent.

Patented Jan. 8, 191-8.

Application led November 22, 1916. Serial No. 132,845.

To all 'whom it may concern:

Be it known that we, WILLIAM H. EBEL- HARE and CLARENCE G. ARVIDSON,citizens of the United' States, and residents of Indianapolis, in thecounty of Marion and State of Indiana, have invented certaln new anduseful Improvements in Stenographic Type-lVriting Machines; and we dohereby declare the following to be a full, clear, and exact descriptionof the invention, such` as will enable others skilled in the art towhich c of construction and combinations of parts as hereinafter setforth and pointed out in the claims. f

In the accompanyin drawings; Figure 1 is a transverse view ostenographic type- Writing machine showing an embodiment of ,ourinvention; Fig. 2 1s a side elevation dicated at 3, and carrying theparts of the operating mechanism. l

` The specific construction ofthe key lever and type mechanisms are notessential to an understanding of the ribbon actuating mechanismhereinafter described, but it may be y here stated that key lever andtype mechanisms such jas disclosed in'our application Serial No. 125,225may be employed. It will be understood however that the ribbon movinmechanism is actuaed from a universal ar and that the operation'of. thelatter'is controlled by thekey levers.

Ribbon reels 4 are located `above the top of the casing 1 and the inkingribbon may pass from one of these reels to the other and past theprinting means in a manner which is well understood. I

The ribbon reels 4 are mounted on vertical shafts 5 and the latter areprovided with slots 6 which receive lugs 7 projecting from the hubs ofthe reels whereby the latter will be caused to rotate with the shafts.The top of4 the V.casing 1 is made with openings 8 through which theshafts 5 pass and bushing 9 for said shafts are disposed between thereels and the top of the inner frame 2. These bushings mayrest uponspring Washers 10 located upon the frame 2. Bearing sleeves 11 aresecured to and depend within the frame 2 for the passage of the shafts 5and to the lower ends of the latter, immediately below the sleeves 11,horizontally disposed beveled gears 12 are secured.

A horizontal actuating shaft 13 is mounted near its respective ends insuitable bushings 14 carried by the side Walls of the frame 2. Sleeves15 are mounted securely to the shaft 13 which can slide and rotate inbushings 14 and to the inner ends of sleeves 15 beveled pinions 15*iLare secured for transmitting motion to the ribbon reel shafts 5. The twosleeves 15 are spaced on the shaft 13 by -a sleeve 16, fastened securelyon shaft 13, thus making the shaft 13 with sleeves 15 and 16, andpinions 15, a fixed unit which slides in the bushings 14 to cause one ofthe pinions to move out of mesh with its gear Wheel and the otherpinionto .move into mesh with its gear wheel. The intermediate 'sleeve16 is providedeentrally with an annular ange 17 havingi'a beveledperipheral portion 18 to be engaged by the beveled' teeth 19 of aretaining member 20, so as to hold one or the other of the beveledpinions in mesh with its gear wheel while the other pinion is out ofmesh with its gear wheel.

The retaining member 420 is pivotally mounted between the depending armsof a bracket 21 secured under the top of the frame 2, and the toothedend of said retaining member is retained in operative relation to thebeveled iange 17 by means of a sprinfr 22,-the tension of which may beadjusted by means of a screw 23 passing through the top of the -frame 2.

The pinions on the shaft 13 may be shifted to move one of said pinionsout of mesh with its gear wheel and the other pinion Y, a shank 33bearing of into mesh with its gear wheel when the direction of travel ofthe inking ribbon is. to be changed, by moving the shaft 13 whlchcarries said pinions longitudinally in the bushings 14. This may beaccomplished automatically by means of mechanism such as described inour application Serial No. 132,846 or it may be accomplished manually asdiscolsed in our application Serial No. 132,612. In order, however, thatsome means shall be disclosed in this application for effecting theshifting of the gearing to change the direction of travel of the inkingribbon, we have shown manually operable means for this purpose. Themanual shifting or ribbon reversing device shown in the drawlngcomprises a. bifurcated arm 24 secured to the lower end of a shaft 25and disposed to ernbrace the centrally located annular flange or wheel17. The shaft 25 is suitably mounted in the framework of the machine andis provided with a knurled knob 26 projecting above the framework. It isapparent that by turning this knob, the bifurcated arm 24 will be movedin one direction or the other, and by its coperation with the flange orwheel 17 cause the pinionsrto be shifted as previously explained, toeffect a reversal of the direction of the ribbon feed.

The rotation of the shaft 13 is effected by means of ratchetdevicescontrolled by the movements of a universal bar 27, the latterbeing operated by the key levers 28. This universal bar is' disposedunder `the key levers somewhat in advance of the pivotal mountings ofsaid levers and as provided at its respective ends with arms 29, 30pivotally attached to the frame 2 in line with the pivotal mountings ofthe key levers, as fully explained in our application, Serial No.125,224. The arm 30 at one end of the universal bar is made with afinger 31 which projects upwardly beyond the pivotal support of saidarm. One end of a spring 32 is attached to the frame 2 and its other endis connected with the finger 31,-said spring servingto retain theuniversal bar and the i parts actuated thereby in their normal positionsand to return the same to such positions.

The shaft 13 is provided at one end with projecting beyond the adjacentsaid shaft in the frame 2, and on th1s=shank, a flanged hub 34 islocated.

A ratchet wheel 35 having fine teeth is secured to the hub 34 and bothmay be secured' to the shank of the shaft 13 by means of a clamping nut36 and washer 37. A plate or carrier 38 is loosely mounted on the hub 34between the flange thereof and the ratchet -wheel and carries aspringctuated pawl 3,9 to engage said ratchet whee This plate or carrieris provided in its lower part with an elongated slot 40 to receive a pin41 projecting aterally from an upwardly and for- Wardly projectingfinger 41 of the universal bar arm 30,-the connection between the pawlcarrier 38 and the universal bar being thus located in front of thepivotal mountings of both the universal bar and the key levers. Thuswhen a key lever is depressed, the downward movement of the universalbar will cause the plate or carrier 38 to move downwardly and the pawl39 to propel the ratchet wheel 38 thus turning the ribbon feed gearingand feeding the ribbon a short distance. A pivoted gravity dog 39a maybe provided to prevent retrograde rotation of the ratchet Wheel and theshaft to which it is secured. It will be observed-` that the inkingribbon is fed on the down stroke of a key lever and after the type hasprinted upon the paper and a new surface of the ribbon will be presentedready for the next impression. The ribbon spools or reels are protectedby means of a cover 42 mounted upon the frame or casing 1,-said coverbeing sustained properly spaced from the top of the casing by means offianges 43 and posts 44, said cover being held removably in place bymeans of knobs 45 screwed on Shanks 46 of said posts.

Various slight changes might be made in the details of construction ofourinvention without departing from the spirit thereof or limiting itsscope and hence we do not wish to restrict ourselves to the precisedetails herein set forth.

Having fully described our invention what we claim as new and desire tosecure by Letters-Patent, is

l. In a typewriting machine, the combination with a frame, ribbon spoolshafts, an actuating shaft, gearing between said shafts, and key levers,of a universal bar under the key levers and having arms pivotallyattached to the frame, a ratchet Wheel on the actuating shaft, a pivotedcarrier,va pawl mounted on said carrier to engage the ratchet wheel',and an operatin connection between said carrier and one o the arms ofthe universal bar.

2. In a typewriting machine, the combination with ribbon spool shafts,an actuating shaft, gearing between said shafts and key levers, of aspring sustained universal bar disposed under the key levers and havingan arm at one end, a ratchet wheel secured to the actuating shaft, apivoted pawl and a universal bar provided with arms pivoted to theframe, of a ratchet Wheel secured to the actuating shaft, a pivotedcarrier, a pawl mounted on said carrier to engage the ratchet wheel, anda pin-and-slot connection between said carrier and one of the universalbar arms.

4. In a typewritng machine, the combination with a frame, ribbon reelshafts, an actuating shaft, and gearing between said shafts, of auniversal bar, arms at respective ends of said bar having pivotalconnection with the frame, a spring attached to the frame and to one ofsaid arms above the pivot thereof, a pin projecting laterally from oneof said arms, a ratchet wheel secured to the actuating shaft, apivotally mounted pawl carrier having an elongated slot to receive thepin on the universal bar arm, and

a spring-actuated pawl mounted on the pawl carrier in position to engagesaid ratchet wh'eel.

5. In a typewriting machine, the combination with a frame, of verticalshafts, bushings for said shafts depending within said frame, ribbonreels mounted on said shafts, bushings between said reels and the frame,

sprin interposed between said last-mentione bushings and the frame,gears secured to the lower ends of said shafts, a horizontal actuatingshaft, pinions on said horizontal shaft to mesh with said gears, andmeans for

